Just about the SCREWS... (PC1304)

@ariker you did not really specify which screws you cannot identify. Good practice when taking things apart is to use an icecube tray and separate the screws as you remove them. Each screw into their own bin :-) anyhow enough Monday morning quarterbacking. Check the attached image and pick the screws according to their diagram number from the parts list. Here is where it gets interesting. Canon use a unique parts number list and does not describe the sizes or anything on their lists. So you will depend on trying to use the search engine of your liking and see if you can find the proper size by checking different vendors. You need a set of calipers to measure the screws, sort them according to size. You will find out that there are 23 screws in 12 different sizes for the complete case.